1992

6.8

2020

8.0

1964

6.2

1993

7.0

1991

7.0

2015

0.0

1969

6.0

1938

6.0

2018

8.0

2002

3.3

1999

6.3

1975

2.7

1975

5.2

1989

0.0

1988

5.6

2002

7.2

1935

7.3

1942

7.1

2007

5.1

1980

6.4